谷子农艺性状的聚类和主成分分析

Cluster and Principal Analysis of Agronomic Characteristics on Foxtail millet

文章以引进的52份谷子种质资源为材料,对其9个农艺性状进行聚类和主成分分析。结果表明:参试材料农艺性状变异系数为16.18%-60.30%,叶片数的变异系数最小,为16.18%;穗粒重的变异系数最大,为60.30%,说明产量性状的变异潜力较高。聚类分析中将参试材料聚为5大类群,其中第三类群为A2-7005,除千粒重外,它的各性状均值都很高。主成分分析结果表明,前6个主成分累计贡献率为88.91%,可以用来表述谷子性状的全部信息。

The cluster analysis and principal component analysis were conducted on 9 agronomic traits index of 52 millet cuhivars.The result indicated that the coffident variation of 9 agronomic traits ranged from 16.18% to 60.30%.The eofffident variation of the numer of leaves is lowest with t6.18%, that of kernels per spike is highest with 60.30%,there was variation potential on filed. Based on cluster analysis of anronomic traits, 52 millet cultivars were divided into 5 groups.One of groups only including A2-7005, its agronomic traits index were higher than the other clusters except thousand kernels weight.The result of principal analyze showed that,The cumulative contribution of the first six principal factors was 88.91%,which can be indicated the information of all properties.